Thank you everyone
The batch has disappeared. Because it was a method of fixing the Japanese style.( Sledge Hammer Table http://ameblo.jp/nabe19681968/day-20100316.html )
I used a 300 liter LN2 to issue a record.
Thermometer is not adjusted. ( Maximum temperature -168℃ )
I will do my best to be able to update record.
http://ameblo.jp/nkdfactory/